Shaking table tests on precast reinforced concrete and engineered cementitious composite/reinforced concrete composite frames

被引:19
作者
Xu, Li [1 ]
Pan, Jinlong [1 ]
Leung, C. K. Y. [2 ]
Yin, Wanyun [3 ]
机构
[1] Southeast Univ, Minist Educ, Key Lab Concrete & Prestressed Concrete Struct, 2 Sipailou, Nanjing 210096, Jiangsu, Peoples R China
[2] Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R China
[3] China MCC17 Grp Co Ltd, Maanshan, Peoples R China
基金
中国国家自然科学基金;
关键词
composite frame; engineered cementitious composite; precast; reinforced concrete; seismic performance; shaking table test; MOMENT-RESISTING FRAMES; PINNED CONNECTIONS; SEISMIC TESTS; BEHAVIOR; MEMBERS; BEAMS;
D O I
10.1177/1369433217733759
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Engineered cementitious composite is an advanced composite material with strain-hardening and multiple cracking behavior. Substituting conventional concrete with engineered cementitious composite can significantly improve the seismic performance of reinforced concrete structures. This article presents the seismic behavior of a precast engineered cementitious composite/reinforced concrete composite frame and a precast reinforced concrete frame. In the precast engineered cementitious composite/reinforced concrete composite frame, engineered cementitious composite is used to replace concrete in the beam-to-column joints and the bottom columns. The shaking table test results on the two scaled frames are presented. The frame failure characteristics and dynamic properties, including the fundamental frequency, story displacement, inter-story drift, and story acceleration, are comprehensively studied. The test results indicate that the connection method adopted in the tested frames is applicable and reliable. Both of the frames have good seismic performance and can withstand earthquakes at the design seismic intensity. Using engineered cementitious composite in precast frames can greatly reduce damage. The precast engineered cementitious composite/reinforced concrete composite frame has better deformation capacity, better energy dissipation ability, and slower stiffness deterioration than the precast reinforced concrete frame.
引用
收藏
页码:824 / 837
页数:14
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